Finding the Third Proportional to 1,015.88 and 2,217.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015.88 : 2,217.38 = 2,217.38 : x
2. Step 2: Convert to fraction form
   1,015.88/2,217.38 = 2,217.38/x
3. Step 3: Cross multiply
   1,015.88x = 2,217.38 × 2,217.38
4. Step 4: Simplify right side
   1,015.88x = 4,916,751.89
5. Step 5: Solve for x
   x = 4,916,751.89/1,015.88
6. Step 6: Final answer
   x = 4,839.92